Pick a Side in the 16 Most Explosive Celebrity Feuds That Went Down This Year

A few weeks after their one-year anniversary in June, Taylor and Calvin broke up. Both of them insisted that the split was amicable, but two weeks after that, Taylor was photographed kissing Tom Hiddleston, which caused Calvin to retract his postbreakup praise of her. Things took yet another dramatic turn in July when Taylor's rep suddenly revealed that Calvin's latest hit song, "This Is What You Came For," was penned by none other than his pop star ex, saying, "Taylor Swift wrote 'This Is What You Came For' under the pseudonym Nils Sjoberg."

Calvin interpreted this as Taylor and her team deliberately trying to make him look bad and fired off a (since-deleted) flurry of angry tweets that even referenced Taylor's longstanding feud with Katy Perry. "I figure if you're happy in your new relationship you should focus on that instead of trying to tear your ex bf down for something to do," he tweeted. "I know you're off tour and you need someone new to try and bury like Katy ETC but I'm not that guy, sorry. I won't allow it." Taylor didn't respond, but that was likely because she found herself embroiled in the feud of the year with Kim Kardashian and Kanye West a mere five days later. Since then, the former couple has reportedly buried the hatchet.

Who do you think came out on top? Vote below!